﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ExampleClass2
{

    class CRectangle {
        int x;
        int y;
        public void Setvalues(int a, int b)
        {
            x = a;
            y = b;
        }
        public int area()
        {
            return (x * y);
        }
    }
    class Program
    {

        static void Main(string[] args)
        {  CRectangle recta=new CRectangle();
            CRectangle rectb=new CRectangle();
            recta.Setvalues(3,4);
            rectb.Setvalues(5,6);
            Console.WriteLine("rect a:{0}",recta.area());
            Console.WriteLine("rect b:{0}", rectb.area());
        }
    }
}
